晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 sh-3ll

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Current File : //opt/cloudlinux/venv/lib64/python3.11/site-packages/sqlalchemy/testing/suite/test_update_delete.py
from .. import config
from .. import fixtures
from ..assertions import eq_
from ..schema import Column
from ..schema import Table
from ... import Integer
from ... import String


class SimpleUpdateDeleteTest(fixtures.TablesTest):
    run_deletes = "each"
    __backend__ = True

    @classmethod
    def define_tables(cls, metadata):
        Table(
            "plain_pk",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(50)),
        )

    @classmethod
    def insert_data(cls, connection):
        connection.execute(
            cls.tables.plain_pk.insert(),
            [
                {"id": 1, "data": "d1"},
                {"id": 2, "data": "d2"},
                {"id": 3, "data": "d3"},
            ],
        )

    def test_update(self):
        t = self.tables.plain_pk
        r = config.db.execute(t.update().where(t.c.id == 2), data="d2_new")
        assert not r.is_insert
        assert not r.returns_rows

        eq_(
            config.db.execute(t.select().order_by(t.c.id)).fetchall(),
            [(1, "d1"), (2, "d2_new"), (3, "d3")],
        )

    def test_delete(self):
        t = self.tables.plain_pk
        r = config.db.execute(t.delete().where(t.c.id == 2))
        assert not r.is_insert
        assert not r.returns_rows
        eq_(
            config.db.execute(t.select().order_by(t.c.id)).fetchall(),
            [(1, "d1"), (3, "d3")],
        )


__all__ = ("SimpleUpdateDeleteTest",)